Donald Trump claims to be worth $10 billion, but it doesn’t seem to be invested in fine art.

The French-impressionist paintings that decorate his homes are likely — don’t call them fakes — reproductions.

A smaller version of the real “La Loge” by Renoir — an 1874 painting in the collection of the Courtauld Institute of Art in London — was sold by Sotheby’s in 2008 for $9.67 million to an unidentified buyer.

But what is probably a skillfully painted copy hangs in Melania Trump’s office in the Trump Tower on Fifth Avenue.

If Trump’s paintings were originals, his collection would be valued at hundreds of millions of dollars. Instead, they are worth little more than their ornate gilt frames. And most people have no idea they aren’t real.

“When it comes to investing, he prefers higher-return investments,” said one longtime Trump friend. “Trump can appreciate great art, but he finds the New York arts crowd elitist and phony. He prefers real estate.”

Mark Bowden wrote in Vanity Fair last year that Trump doesn’t care much for the beauty of fine art. “His behavior was cringe-worthy. He showed off the gilded interior of his plane — calling me over to inspect a Renoir on its walls, beckoning me to lean in closely to see . . . what? The luminosity of the brush strokes? The masterly use of color? No. The signature. ‘Worth $10 million,’ he told me.

That painting may have been a fake too, since such a work of art would probably not be stored on a plane, where it could be damaged.